The below is pretty close to what I have sitting in the basement of my
parents house, it does not work anymore. See link for more details here :
<www.apple-history.com/frames/body.php?page=gallery&model=aIII>
Apple /// & ///+
================
Codename: Sara
CPU: SynerTek 6502A
CPU Speed: 2 MHz
FPU: none
Bus Speed: 2 MHz
Data Path: 8 bit
ROM: 4 kB
Onboard RAM: 128 kB (256 kB in revised and IIIplus)
Maximum RAM: 256 kB (My one has 256kb)
Maximum Resolution: 80x24 text, 1 bit (B&W) 590x192
Slots: 4 proprietary (compatible w/ Apple II)
Floppy Drive: built-in Shugart 143 kB 5.25"
Serial: optional expansion card
Speaker(s): mono
Introduced: June 1980
Also has a 5mb hard drive that is called a 'profile'.
I am sure I also have quite a bit of hardware documentation on it stacked
away at my parents. If you have no success anywhere else and can wait until
my next trip home, which is going to be a few months away, I'll see if I
can find it.